One Piece: Seaside System - Chapter 12: Marine Based -

Do you know what it feels like to get shot in the face? A bullet straight to the face?

Yeah, it's a type of quick death where you wouldn't have to feel much pain, but I'm sure most people wouldn't love to die that way...

..But that's exactly how Aiden died. He was shot in the face by the leader of the gang he was in, and it was instant death for him. He joined a gang due to the troubles of life, the unfairness of life, and that's what caused his death.

But that wasn't the end for Aiden. After meeting with the demi-gods and choosing a path, he passed through the cycle of reincarnation and was reborn as a baby into a world where superpowers exist...

..A world where your power element determines how far you'll go, a world where not everyone gets to possess an ability, a world where magical beasts exist.

Aiden would have to survive in this world, he'll have to become stronger to do that, he'll have to awaken an ability. Luckily for him, he was granted something no one else possesses...

[ Ding! Ding!]

[ You've been granted the Undefeated System]

With this system, Aiden can become stronger by conquering females, by banging them. This was gonna be of big help to him, the Undefeated System was gonna take him far.

His journey begins...

Medieval times, warring knights, dragons, demons, gods, pirates, behemoths...Barbaric, ignorant, backward, numb, starvation widespread, people unable to make a living...Damn it! Punch to explode this era!!Reclaiming wilderness, farming, bridge building, road paving, coal mining, excavating minerals!Leveling up, recruiting apostles, forging an army!Barrage troops! Pushing horizontally!Quack! My steel torrent is invincible in this world!!Roman: “I am your destiny! Kneel before me!”So, you were supposed to farm, but somehow you ended up establishing a vast empire and becoming the emperor?

Travel through the world of Naruto, activate the god-level forging system, and a super strong man has risen in the ninja world!

One after another artifact appeared in the ninja world one after another,

So the whole world is boiling!

Grass Pheasant Sword, Ten Fist Sword, One Hit Kill – Murasame!

The beheading sword, the Zanpakutō, the flowing blade is like fire・d solution!

Red Sand Scorpion: “My puppet is not worth mentioning in front of his ninja gear!”

Four Raikage: “What?

He can slash through my Thunder Dun armor with a single knife? ! ”

Madara Uchiha: “I can’t even beat his ninja gear. What kind of fourth ninja war is going on?”

- Description from novelbuddy

Zeke Draker,The first failure to awaken among the direct descendants of the Dragonslayer family.Expelled from his family for possessing the talent of a Healer instead of a swordsman.Zeke struggled desperately to become stronger, only to face a miserable death.At the moment of his death, strange letters appeared before his eyes.[The soul of the Elder Dragon is engraved into the spirit of the one who possesses will.][An irrevocable and promised power is activated.]When he regained consciousness, he opened his eyes twenty years in the past, in the family that had abandoned him.“If I can become stronger, I will use anything at my disposal.”A new awakening with an immortal power.The legend of a Dragonslayer with a different class begins.